latency of the kinect DK

Question

Hello everyone,

For a school project I need to analyze the trajectory of a thrown tennis ball. I am highly interested in the idea of using the Kinect DK and its TOF sensor for that purpose.

The advertised 30fps would be enough for my application but I need to make sure that I wont have any additional latency and that I will have access to new data at least every 40ms.

Could anybody confirm that there isn’t any buffer that would stock a couple of images before delivering it, reducing therefore the “real fps” of the camera.

Thank you in advance for your help,

Loïc

Answer 1

Hello @Anderes Loïc Thanks for your query.

The document gives the information which you have mentioned in your query. However, the performance depends on your usage/test scenario. There is an active Uservoice feedback submitted which includes latency as well. I would suggest benchmarking your test data if possible with Azure Kinect DK. We are working with PG team to address the customer voice on the reported latency issue, please stay tuned on this. You can also identify internal opportunities for improvement on this topic by commenting on the Uservoice. Please comment in the below section to continue this discussion and we will be happy to help you further.

Ref: Depth camera supported operating modes :

Answer 2

Hello,

First of all thank you for your answer,

That Uservoice feedback about high latency and some others that i have found are all about the bodytracking plugin being slow. In my application I only need to find the 3D coordonate of a tennis ball so i wont use any bodytracking feature.

It would help me a lot if you could confirm that their high latency issue is mostly based on the bodytracking plugin and not on the camera itself.

Unfortunatly i can't benchmark the data with the camera as i dont have it yet.

Thank you again,

Loïc